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Question

Chemistry Question on d -and f -Block Elements

The transition elements have a general electronic configuration.

A

ns2np6nd110ns^2np^6nd^{1-10}

B

(n1)d110,ns02,np06(n-1)d^{1-10},ns^{0-2},np^{0-6}

C

(n1)d110,ns12(n-1)d^{1-10},ns^{1-2}

D

nd110ns2nd^{1-10}ns^2

Answer

(n1)d110,ns12(n-1)d^{1-10},ns^{1-2}

Explanation

Solution

In the transition elements, the d-orbitals are successively filled. The general electronic configuration of d-block is \hspace5mm (n-1)d^{1-10}ns^{1-2} Where (n - 1) stands for inner shell and d-orbitals may have one to ten electrons and the s-orbital of the outermost shell (n) may have one or two electrons.